Form preview

Get the free FAA Form 337 Major Repair and Alteration

Get Form
We are not affiliated with any brand or entity on this form
Illustration
Fill out
Complete the form online in a simple drag-and-drop editor.
Illustration
eSign
Add your legally binding signature or send the form for signing.
Illustration
Share
Share the form via a link, letting anyone fill it out from any device.
Illustration
Export
Download, print, email, or move the form to your cloud storage.

Why pdfFiller is the best tool for your documents and forms

GDPR
AICPA SOC 2
PCI
HIPAA
CCPA
FDA

End-to-end document management

From editing and signing to collaboration and tracking, pdfFiller has everything you need to get your documents done quickly and efficiently.

Accessible from anywhere

pdfFiller is fully cloud-based. This means you can edit, sign, and share documents from anywhere using your computer, smartphone, or tablet.

Secure and compliant

pdfFiller lets you securely manage documents following global laws like ESIGN, CCPA, and GDPR. It's also HIPAA and SOC 2 compliant.
Form preview

What is FAA Form 337

The FAA Form 337 Major Repair and Alteration is a government document used by certified mechanics and authorized individuals to report significant repairs and alterations to aircraft.

pdfFiller scores top ratings on review platforms

Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Show more Show less
Fill fillable FAA 337 form: Try Risk Free
Rate free FAA 337 form
4.9
satisfied
41 votes

Who needs FAA Form 337?

Explore how professionals across industries use pdfFiller.
Picture
FAA Form 337 is needed by:
  • Certified Mechanics responsible for reporting aircraft repairs.
  • Aircraft owners needing to document major alterations.
  • Aviation maintenance organizations ensuring compliance.
  • Aircraft inspectors verifying alterations and repairs.
  • Legal representatives managing aviation-related documentation.

Comprehensive Guide to FAA Form 337

What is the FAA Form 337 Major Repair and Alteration?

The FAA Form 337 is a critical document used to report major repairs and alterations made to aircraft in the United States. This important aircraft repair form ensures that all modifications are documented and certified by qualified mechanics, thereby maintaining safety and compliance within the aviation industry. Submitting this form is essential for any significant work done on aircraft, as failure to do so can lead to serious implications.

Purpose and Benefits of the FAA Form 337 Major Repair and Alteration

The primary purpose of the FAA Form 337 is to adhere to legal obligations related to aircraft maintenance and safety compliance. It serves as an official record which is vital for proving that all repairs and alterations are completed according to aviation regulations. Neglecting to file this form could result in legal penalties and jeopardize the safety operational status of the aircraft.
  • Helps maintain the aircraft's market value.
  • Provides a thorough documentation trail for future audits.
  • Enforces compliance with federal aviation laws.

Who Needs the FAA Form 337 Major Repair and Alteration?

Completion of the FAA Form 337 is essential for professionals involved in aircraft maintenance. Certified Mechanics and Authorized Individuals must fill out this form whenever major alterations or repairs take place. It is necessary to differentiate situations that demand the form from those that do not; understanding this distinction ensures full compliance with aviation regulations.

How to Fill Out the FAA Form 337 Major Repair and Alteration Online (Step-by-Step)

Filling out the FAA Form 337 can be streamlined using pdfFiller. Here’s a step-by-step guide:
  • Access the form on pdfFiller’s platform.
  • Fill in the required fields including details of the aircraft and nature of the repair.
  • Utilize the online signing feature for certifications.
  • Save your progress regularly to avoid losing information.
  • Review your entries using the checklist provided on pdfFiller.

Field-by-Field Instructions for Completing FAA Form 337

The FAA Form 337 consists of multiple sections, each requiring specific information. Notable sections include the "Description of Repair" and "Signature of Authorized Individual." Users should pay close attention to common errors, such as misreporting the details of repairs or neglecting to obtain signatures, to prevent complications during submission.

Required Documents and Supporting Materials

When submitting the FAA Form 337, accompanying documentation is crucial. Required supporting materials may include:
  • Maintenance records.
  • Previous alteration history.
  • Certification of qualifications from mechanics.
Ensuring all necessary documents are included not only supports compliance but also expedites the processing of the form.

Submission Methods and Where to Submit the FAA Form 337

The FAA Form 337 can be submitted via various methods, including online through pdfFiller and traditional mail. It’s important to send the completed form to the appropriate agencies, such as the FAA regional office. Be aware of any deadlines associated with submission to avoid delays in processing.

Consequences of Not Filing or Late Filing the FAA Form 337

Failure to submit the FAA Form 337, or late filing can result in considerable legal and financial repercussions. This neglect can adversely affect the operational status and ownership of the aircraft. If a late submission occurs, it is advisable to rectify the situation as quickly as possible by filing the necessary documentation and informing relevant authorities.

How pdfFiller Can Help You Complete the FAA Form 337

pdfFiller streamlines the completion of government forms with a range of features designed to facilitate the process. Available online tools allow for easy editing, signing, and document management. The platform prioritizes security, ensuring that sensitive documents are handled in compliance with federal regulations.

Getting Started with pdfFiller for Your FAA Form 337 Needs

Start your experience with pdfFiller by signing up and accessing the FAA Form 337. The platform’s intuitive design enhances your ability to fill out and manage forms efficiently. With built-in security features, pdfFiller ensures that your data remains protected while you navigate the requirements for aircraft repair forms.
Last updated on Apr 21, 2026

How to fill out the FAA Form 337

  1. 1.
    Start by accessing the FAA Form 337 on pdfFiller. Visit the website and use the search bar to find the form or navigate the government forms section.
  2. 2.
    Once you’ve located the form, click on it to open in the pdfFiller interface. You will see various fillable fields.
  3. 3.
    Before filling out the form, gather all necessary information regarding the aircraft and the nature of the repairs or alterations.
  4. 4.
    Begin entering the aircraft’s identification details in the designated fields. Be sure to print or type all entries as specified on the form.
  5. 5.
    Next, fill out the section detailing the nature of the major repair or alteration. Use clear descriptions to ensure compliance.
  6. 6.
    After completing the required fields, review the entries for accuracy and completeness. Ensure all necessary details are correctly filled out.
  7. 7.
    Once confirmed, proceed to sign the form in the appropriate section. Ensure that the signature matches the name of the authorized individual or certified mechanic.
  8. 8.
    To finalize your form, save it in pdfFiller. You can also download it directly to your device or submit it electronically, as per your preferences.
Regular content decoration

FAQs

If you can't find what you're looking for, please contact us anytime!
Eligible individuals include certified mechanics and authorized individuals responsible for reporting major repairs and alterations to aircraft.
There are no strict deadlines for submitting FAA Form 337; however, it must be filed promptly after major repairs or alterations to remain compliant with federal regulations.
FAA Form 337 can be submitted electronically via pdfFiller, or it can be printed and mailed to the FAA office as per your compliance requirements.
Typically, you will need any documentation that details the repairs or alterations completed, including maintenance records and applicable certifications.
Common mistakes include omitting required signatures, failing to provide detailed descriptions of repairs, and not using the proper format for entries.
Processing times for FAA Form 337 may vary, but it should be reviewed promptly by the appropriate FAA authority as part of compliance checks.
If you need to make corrections, it is best to consult the FAA guidelines or regulations on amending submitted forms to ensure accurate submission.
If you believe that this page should be taken down, please follow our DMCA take down process here .
This form may include fields for payment information. Data entered in these fields is not covered by PCI DSS compliance.